Question

Why do some DNA fragments move farther than others during gel electrophoresis?

A.
Because their shapes are different

B.
Because they are different types of molecules

C.
Because the samples are different colors

D.
Because their masses are different

Answer 1

Answer:

D because their masses are different

Explanation:

they undergo a push by the electric field

the heavier strand moves the least and the lightest moves the most

Answer 2

During gel electrophoresis, DNA fragment move according to their masses. The correct option is D.

What is gel electrophoresis?

Gel electrophoresis is a laboratory technique for separating DNA, RNA, or protein mixtures based on molecular size.

During gel electrophoresis, DNA fragments move farther than others during gel electrophoresis due to their masses difference.

Thus, the correct option is D.

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